Brake fluid, commonly known as "brake oil," is the medium that transmits pressure to brake the wheels in the vehicle's hydraulic braking system. In order to ensure the safety of traffic, priority should be given to the use of synthetic brake fluid with excellent performance. It consists of ethers, alcohols, esters and other substances, and added additives (antioxidants, rust inhibitors, lubricants rubber swelling agent) blended. Phase-out and mineral oil-based brake fluids are being phased out in the market. 1. How to identify true and false brake fluids Counterfeit and inferior brake fluids on the market today are very good. If the driver buys such brake fluid, it will pose a serious threat to traffic safety. Now introduce an easy way to identify the true and false brake fluid: pour a little brake fluid on the palm of your hand, the real brake fluid will generally feel a little cool first, feel some heat after a moment, and not be volatile; if you feel brake Abnormal cold fluid, no hot feeling, and will slowly evaporate, it is likely to be false brake fluid, can not be purchased and used. 2. How to prevent the brake fluid from being contaminated by water The brake fluid is hygroscopic and sensitive to water. If moisture intrudes into the brake fluid, the brake fluid is susceptible to delamination, deterioration, and deterioration in low temperature performance. Therefore, it is necessary to prevent the brake fluid from being contaminated with water during use. (1) During the storage and transportation of the brake fluid, it must be sealed to prevent moisture and impurities from mixing into the brake fluid. (2) If the motor vehicle runs for a long time in the rainy season, the waterway and the hot and humid climate, the brake fluid replacement period should be shortened. (3) After the brake fluid has been used for a certain period of time, the boiling point and oxidation or deterioration will occur in different degrees. Therefore, when replacing the brake fluid, especially when replacing different types of brake fluid, the brake system piping must be thoroughly cleaned. (4) Before filling, if a white precipitate is found in the brake fluid, it should be filtered and removed before use. 3. What if the brake fluid is found on the way? If the brake fails, the driver should do the following when checking that the brake fluid reservoir is short of oil. (1) Do not rush to add different types of brake fluid. Because the brake fluid is divided into three major categories: alcohol type, mineral oil type and synthetic type, different types or different types of brake fluids are not allowed to be mixed, otherwise there is delamination phenomenon, loss of braking performance, endangering driving safety. (2) The real cause of the lack of oil as soon as possible is the natural loss of the brake fluid, or the leakage due to a poor seal, and then discriminating between different situations as appropriate. If the sealing element is damaged, replace it with a new one; if it is loose, tighten it immediately. If the brake fluid is a natural loss, it can be supplemented with the same type of brake fluid, but there must be prior inspection of the brake fluid and a white precipitate is found. It should be filtered before use. (3) If the brake fluid of the same model number is not carried or cannot be bought, and there is a need to replace the brake fluid of another model, the brake fluid remaining in the brake system should be completely discharged, and then it should be replaced with alcohol. The moving system is thoroughly cleaned until alcohol flows out of all the cylinders, and new brake fluid is added last. (4) If you can't buy any type of brake fluid, you can use alcohol or liquor instead. But at this time, the braking effect of each wheel brake will be reduced, so the motor vehicle should use a lower gear to drive, pay attention to control the speed, and minimize high-intensity braking to ensure driving safety. And should close the car as soon as possible, immediately release the substitute after the car, use the special brake fluid for this model.
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